Surface topographical and ultrastructural alterations of Raillietina echinobothrida and Ascaridia galli induced by a compound isolated from Acacia oxyphylla

2012 ◽  
Vol 185 (2-4) ◽  
pp. 322-326 ◽  
Author(s):  
B. Roy ◽  
S. Dasgupta ◽  
V. Manivel ◽  
P.S. Parameswaran ◽  
B.R. Giri
1999 ◽  
Vol 52 (2) ◽  
pp. 107-112
Author(s):  
C. Terregino ◽  
E. Catelli ◽  
G. Poglayen ◽  
A. Tonelli ◽  
O.I. Gadale

Une étude épidémiologique sur les helminthes du tube digestif du poulet (Gallus gallus domesticus) a été effectuée en Somalie. Cent quarante poulets de race locale et originaires de deux systèmes d’élevage différents ont été utilisés. Parmi eux, 125 provenaient d’élevages traditionnels et avaient été amenés à l’abattoir de Mogadishu et les 15 autres étaient issus d’un élevage intensif. Sur les 140 poulets examinés, 110 étaient infestés (79 p. 100) : 104 provenaient des élevages traditionnels et 6 de l’élevage intensif. Ainsi, 83 p. 100 des poulets du premier groupe et 40 p. 100 du second étaient infestés. Les résultats ont également mis en évidence une différence significative (p < 0,01) entre les deux types d’élevages concernant la prévalence des endoparasites. Les espèces parasitaires identifiées étaient les suivantes : Ascaridia galli, Subulura suctoria, Raillietina (Raillietina) tetragona, Raillietina (Raillietina) echinobothrida, Raillietina (Skrjabinia) cesticillus, Raillietina (Paroniella)  sp., Raillietina (Raillietina) sp., Raillietina sp., Cotugnia sp. et Mediorhynchus gallinarum. Aucun trématode n’a été trouvé. Les parasites ont présenté des formes d’associations diverses.


2009 ◽  
Vol 59 (3) ◽  
pp. 289-297 ◽  
Author(s):  
Yacob Tolossa ◽  
Asoke Basu ◽  
Ziad Shafi

AbstractA survey for ectoparasites and gastrointestinal helminths was conducted in 150 chickens raised in a traditional backyard production system. The chickens were randomly selected from six sites in three agro-climatic zones in central Ethiopia, namely Bekoji and Chancho (highland), Woliso and Teji (midland), and Metehara and Zeway Dugda (lowland). The study indicated that in the three agro-climatic zones 126 (84%), 108 (72%) and 97 (64.67%) of the examined chickens were harbouring ectoparasites, nematodes and cestodes respectively. Out of 10 species of ectoparasites, Menacanthus stramineus (40%) was the most frequent species. Postmortem examinations revealed the presence of four species of nematodes (Ascaridia galli, Heterakis gallinarum, Subulura brumpti and Capillaria caudinflata) and four species of cestodes (Raillietina echinobothrida, R. tetragona, R. cesticillus and Choanotaenia infundibulum). The ectoparasite infestation was found to be sex specific in chicken, being significantly higher (P<0.05) in males. On the other hand, endoparasitic infection showed no such difference (P>0.05). No difference was found among the three agro-climatic zones in the frequency of ectoparasite and nematode infection. However, a significant difference (P<0.05) in the frequency of cestode infection among the three zones was observed.


1997 ◽  
Vol 71 (3) ◽  
pp. 233-240 ◽  
Author(s):  
A. Permin ◽  
H. Magwisha ◽  
A.A. Kassuku ◽  
P. Nansen ◽  
M. Bisgaard ◽  
...  

AbstractA cross-sectional study on the prevalence of helminths in rural scavenging poultry on six hundred adult chickens selected randomly from six villages in the Morogoro Region, Tanzania during the wet and the dry seasons, was conducted. The trachea and gastrointestinal tract of each bird were examined for the presence of parasites. All chickens were infected with one or several species of helminths, the average being 4.8 ±1.7 helminths per chicken during the wet season and 5.1 ± 1.8 during the dry season. A total of 29 different helminth species were shown in the trachea or the gastrointestinal tract. The following species were identified: Syngamus trachea (0.7% (wet season), 2% (dry season)); Gongylonema ingluvicola (6.3%, 17.7%); Tetrameres americana (54.3%, 60.3%); Dispharynx nasuta (0%, 2.7%); Acuaria hamulosa (8.3%, 19.3%); Ascaridia galli (28.3%, 32.3%); Heterakis gallinarum (74.0%, 78.7%); H. isolonche (18.7%, 5.0%); H. dispar (25.7%, 6.3%); Allodapa suctoria (40.0%, 52.0%); Subulura strongylina (3.3%, 1.0%); Strongyloides avium (0.3%, 3.0%); Capillaria annulata (2.0%, 0.0%); C. contorta (9.0%, 1.0%); C. caudinflata (2.0%, 4.3%); C. obsignata (8.7%, 25.0%); C. anatis (4.0%, 9.0%); C. bursata (1.0%, 2.7%); Raillietina echinobothrida (41.3%, 46.3%); R. tetragona (25.3%, 21.3%); R. cesticillus (8.7%, 2.7%); Choanotaenia infundibulum (0.0%, 3.7%); Hymenolepis carioca (9.0%, 18.0%); H. cantaniana (48.0%, 43.0%); Amoebotaenia cuneata (39.3%, 36.0%); Metroliasthes lucida (1.0%, 0.3%); Davainea proglottina (5.7%, 0.3%) and Polymorphus boschadis (0.3%, 0.0%). No trematodes were found. No correlation was found between season and prevalence, or season and mean worm burdens. Twelve helminths of the species recovered represent new local records.


2021 ◽  
Vol 22 (1) ◽  
pp. 1
Author(s):  
Nova Hariani ◽  
Imilia Simanjuntak

One of the diseases often threatens the health of free-range chickens and egg-laying chickens are worm parasites (endoparasites). Parasites can be transmitted through food, drinks and the cage environment. Sanitation is one of the preventive steps carry out by farmers to protect livestock against infection from the environment. The objective of study was to determine the prevalence and intensity of parasitic worm eggs that infect the digestive tracts of free-range chickens and egg- laying hens in Muara Badak District. Research was done by observing worm eggs in fecal samples. A total of 60 samples consisting of 30 samples of egg-laying hens in Tanjung Village and 30 samples of free-range chickens in Badak Baru Village, Muara Badak. For the sample analysis technique used 2 methods are namely the floating method and the sedimentation method. The results has showed the type of worm eggs are infected the digestive tract found in free-range chickens and egg-laying chickens had consisted of Echinostoma revolutum, Raillietina echinobothrida, Raillietina tetragona, Davainea proglotina, Amoebotaenia sphenoides, Ascaridia galli, Capillaria annulata and Trichostrongylus tenuis. The highest prevalence in free- range chickens and egg-laying chickens were found in Ascaridia galli was 53.33% and 40%. While the lowest prevalence in free-range chickens against Raillietina echinobothrida and Amoebotaenia sphenoides 3.33%. egg-laying chickens are against Echinostoma revolutum, Raillietina tetragona and Trichostrongylus tenuis 6.67%. The highest intensity in free-range chickens and against Ascaridia galli was 141 eggs/individual and in egg-laying chickens was 139 eggs/individuals. The lowest intensity in this research was found in free-range chickens against Amoebotaenia sphenoides and Raillietina echinobothrida 3 eggs/individuals and egg-laying chickens against Echinostoma revolutum 5 eggs/individuals. Keywords: Endoparasites, Prevalence, Intensity, Chicken, hen.


Author(s):  
Waykin Nopanitaya ◽  
Raeford E. Brown ◽  
Joe W. Grisham ◽  
Johnny L. Carson

Mammalian endothelial cells lining hepatic sinusoids have been found to be widely fenestrated. Previous SEM studies (1,2) have noted two general size catagories of fenestrations; large fenestrae were distributed randomly while the small type occurred in groups. These investigations also reported that large fenestrae were more numerous and larger in the endothelial cells at the afferent ends of sinusoids or around the portal areas, whereas small fenestrae were more numerous around the centrilobular portion of the hepatic lobule. It has been further suggested that under some physiologic conditions small fenestrae could fuse and subsequently become the large type, but this is, as yet, unproven.We have used a reproducible experimental model of hypoxia to study the ultrastructural alterations in sinusoidal endothelial fenestrations in order to investigate the origin of occurrence of large fenestrae.


1971 ◽  
Vol 26 (03) ◽  
pp. 488-492 ◽  
Author(s):  
Th B. Tschopp ◽  
H.-R Baumgartner ◽  
A Studer

SummaryIn rabbits and cats Congo red administered intravenously causes severe thrombocytopenia and ultrastructural alterations of platelets and leucocytes, similar to those produced by some fatty acids and endotoxin. Transient leucopenia is followed by leucocytosis. In contrast, incubation of Congo red in citrated blood or platelet rich plasma has no effect. Therefore, an indirect mechanism is postulated to explain the in vivo effect of Congo red.


2013 ◽  
Vol 4 ◽  
Author(s):  
Xavier Aurelizia Maria ◽  
Tavares Daniel ◽  
Guimar�es Erick ◽  
Da Silva Antonio Carlos ◽  
De Moraes Neto Antonio Henrique

2020 ◽  
Vol 51 (4) ◽  
pp. 1220-1225
Author(s):  
Faraj & Al- Amery

Ascaridiosis is a very important parasitic disease of birds, it is caused by Ascaridia. This study was conducted to identify the Ascaridia species by microscopic and molecular assay in Baghdad city. One hundred and sixty fecal samples were collected from domestic pigeons during the period from 1/1/ 2019 to 31/3/ 2019.  Results showed that the rate of infection for Ascaridia spp. 15.62% by microscopic examination.  Significant difference was observed in infection rates between males and females pigeons. Fifty samples randomly selected and subjected to molecular diagnosis of Ascaridia  spp.. Molecular examination results, the total infection rate showed 16%(8/50). The eight  positive PCR products were sequenced and deposited in Gene bank data base, phylogenic analysis demonstrated that 4 sequences belongs to Ascaridia galli ( MK918635.1, MK918636.1, MK918847.1, MK919081.1), while 2 (MK919199.1, MK919200.1) belong to  Ascaridia nymphii and 2 (MK919207.1, MK919264.1)  belong to Ascaridia numidae. It is the first study in Iraq to diagnosis of  Ascaridia nymphii and Ascaridia numidae  in domesticed pigeons by using conventional PCR.


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